Add explicit version bounds for dependencies

+ hmatrix >= 0.10 && <0.17,
+ singletons >= 0.9.0 && <2.0.0.0

ihaskell-display/ihaskell-plot/ihaskell-plot.cabal

@@ -61,6 +61,7 @@ library
   build-depends:       base >=4.6 && <4.9,
                        plot,
                        bytestring,
+                       hmatrix >= 0.10 && <0.17,
                        ihaskell >= 0.6.2
   
   -- Directories containing source files.

ihaskell-display/ihaskell-widgets/ihaskell-widgets.cabal

@@ -104,7 +104,7 @@ library
                      , nats -any
                      , vinyl >= 0.5
                      , vector -any
-                     , singletons >= 0.9.0
+                     , singletons >= 0.9.0 && <2.0.0.0
                      , scientific -any
                      , unix -any